[DFDL-WG] whitespace in DFDL annotations: right now regex is xs:string, expression is xs:token

[Suman Kalia]

Mike - I am not sure but my gut feeling is that it would start with the 
most restrictive one first.  i.e  If empty string    ( assuming it has 
length facet 1) -  would match Nothing ,   then xsd:token which is 
restricted form of xs:string.  I think you are going to get string with 
white spaces collpsed  ( xsd:token) if it not empty string.  You can run 
few tests to see the behavior.. 


Suman Kalia
IBM Canada Lab
WMB Toolkit Architect and Development Lead
Tel: 905-413-3923 T/L 313-3923
Email: kalia at ca.ibm.com

For info on Message broker
http://www.ibm.com/developerworks/websphere/zones/businessintegration/wmb.html





From:   Mike Beckerle <mbeckerle.dfdl at gmail.com>
To:     dfdl-wg at ogf.org, 
Date:   03/19/2013 12:43 PM
Subject:        [DFDL-WG] whitespace in DFDL annotations: right now regex 
is xs:string, expression is xs:token
Sent by:        dfdl-wg-bounces at ogf.org




This came up on the call. The schemas I have for DFDL annotations have 
DFDLRegularExpression as an xs:string, and DFDLExpression as an xs:token. 
I have no clue what a union of these types behaves like. But we have a 
union called DFDLExpressionOrPatternOrNothing which is a 3-way union of 
DFDLExpression, DFDLRegularExpression, and EmptyString (which is also 
derived from xs:string but has length facet of 0 as well. 


-- 
Mike Beckerle | OGF DFDL Workgroup Co-Chair | Tresys Technology | 
www.tresys.com
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